Bingham parameters of mortar
Mortar flow is usually measured using a drop table. We also measure minislump flow for high-fluidity mortar even though it is not regulated in a standard test method. The channel flow is a good alternative to sensitively estimate the Bingham parameters of a sample.
ASTM C1437 - Standard test method for flow of hydraulic cement mortar
Shin, T.Y., Kim, J.H., First step in modeling the flow table test to characterize the rheology of normally vibrated concrete, Cem. Concr. Res. 152: 106678, 2022, https://doi.org/10.1016/j.cemconres.2021.106678
Kim, J.H., Lee, J.H., Shin, T.Y., Yoon, J.Y., Rheological method for alpha test evaluation of developing superplasticizers’ performance: channel flow test, Adv. Mater. Sci. Eng., 4214086, 2017, https://doi.org/10.1155/2017/4214086
Bingham parameters of concrete
Slump and slump flow of concrete are requisitely measured. A rheological model easily converts the test results into the material properties: Bingham parameters, yield stress and plastic viscosity.
Roussel, N., Coussot, P., “Fifty-cent rheometer” for yield stress measurements: from slump to spreading flow, J. Rheol., 2005, https://doi.org/10.1122/1.1879041
T.Y. Shin, J.H. Kim, S.H. Han, Rheological properties considering the effect of aggregates on concrete slump flow, Mater. Struct. 50: 239, 2017, https://doi.org/10.1617/s11527-017-1104-9
T.Y. Shin, S.H. Han, J.H. Kim, Estimation of yield stress and plastic viscosity of concrete using the slump flow test, J. Korea Concr. Inst. 32: 165-171, 2020, https://doi.org/10.4334/JKCI.2020.32.2.165
22CCR mortar flow.pdf17AMSE channel flow.pdf20KCI slump flow.pdf